Smith-Blair · End Cap
Style 482 OMNI Cast Pipe End Cap
Ductile Iron Sleeve, End Cap and Follower, Epoxy Coated — Wide-Range OMNI Design, Low-Alloy Bolts
250 PSI Max Working Pressure
-20°F to +180°F Temperature
Nitrile (Buna-N) Gasket
Epoxy-Coated Ductile Iron Sleeve and End Cap
Low-Alloy Steel Bolts and Nuts
NSF/ANSI 61 and 372
AWWA C219
2.34-14.40 in Pipe OD
9-75 lb Weight
Description
The Smith-Blair Style 482 OMNI is a cast ductile iron end cap for sealing plain pipe ends, for line testing or as a dependable, removable closure. One sleeve design per nominal size covers up to 2.40 in of OD range, so a single cap fits iron pipe size, ductile iron and asbestos cement pipe, and the followers are color coded for quick selection: red for iron pipe size, blue for ductile iron and gray for asbestos cement.
No special pipe-end preparation is needed. The cast end cap carries an offset outlet for blow-off, draining or line testing, 1 in NPT on 2 to 3 in sizes and 2 in NPT on 4 to 12 in, and the whole assembly is finished in Flexi-Coat fusion-bonded epoxy. Sizes run 2 to 12 in.
Application: sealing plain pipe ends for line testing, dead ends and temporary closures, 2 to 12 in.
Key Features
- Working pressure up to 250 PSI
- Wide-range OMNI sleeve: up to 2.40 in of OD range per assembly
- Color-coded followers for iron pipe size, ductile iron and asbestos cement
- Offset threaded outlet for blow-off, draining or testing
- Meets applicable AWWA C219; certified to NSF/ANSI 61 and NSF/ANSI 372
What Ships and What It Needs to Run
Included: the ductile iron sleeve with cast end cap and threaded outlet (1 in NPT on 2-3 in, 2 in NPT on 4-12 in), follower, Nitrile gasket, and low-alloy steel bolts and nuts.
Thrust restraint: Thrust restraint is always required when the line is in use: the cap seals on the pipe but does not restrain it, so block or anchor it securely to keep it from moving off the pipe end.
On HDPE pipe: pipe stiffeners are required, ordered separately.
Genuine Smith-Blair equipment, factory-new in original packaging — sold and supported by Watermain Supply, an independent industrial supplier.
12-Month Smith-Blair Warranty
Smith-Blair warrants its products to be free of defects in materials and workmanship for one year from the date of shipment by Smith-Blair. Dated proof of purchase, such as a bill of sale, is required to establish eligibility. Smith-Blair will repair or, at its option, replace a defective product; the product is returned to the factory or warehouse Smith-Blair designates.
Working Pressure
Up to 250 PSI.. Smith-Blair notes that the pressure rating depends on many factors, including pipe type, diameter and service conditions, and assumes the cap is properly restrained.
Materials Specifications
| Sleeve |
Ductile iron 65-45-12 per ASTM A536, smooth inside taper for uniform gasket seating |
| End cap |
Ductile iron 65-45-12 per ASTM A536, heavy tapping boss with offset outlet |
| Follower |
Ductile iron 65-45-12 per ASTM A536, color coded, integral bolt-head pocket |
| Gasket |
Nitrile (Buna-N) per ASTM D2000, molded ribs for DI and AC pipe, marked with part number and size range; -20°F to +180°F |
| Bolts |
HSLA steel per AWWA C111/A21.11, 5/8-11 UNC oval-neck track head, rolled threads |
| Nuts |
HSLA steel per AWWA C111/A21.11, 5/8-11 UNC heavy hex |
| Finish |
Flexi-Coat fusion-bonded epoxy (meets AWWA C213) |
Materials subject to change by the manufacturer.
Pipe Applications
Carbon steel, stainless steel, ductile iron, cast iron, asbestos cement and PVC, plus HDPE with pipe stiffeners.
Sizes
32 sizes from 2.34 to 14.40 in OD — open for the full list
| Nominal size - pipe OD |
|---|
| 2 in - 2.34-2.63 in |
| 2-1/2 in - 2.65-2.88 in |
| 3 in - 2.85-3.13 in |
| 3 in - 3.44-3.62 in |
| 3 in - 3.80-3.96 in |
| 3 in - 3.97-4.14 in |
| 4 in - 4.00-4.15 in |
| 4 in - 4.22-4.50 in |
| 4 in - 4.46-4.86 in |
| 4 in - 4.80-5.10 in |
| 4 in - 5.11-5.45 in |
| 6 in - 6.00-6.15 in |
| 6 in - 6.28-6.63 in |
| 6 in - 6.56-6.96 in |
| 6 in - 6.90-7.22 in |
| 6 in - 7.25-7.65 in |
| 8 in - 8.00-8.16 in |
| 8 in - 8.40-8.63 in |
| 8 in - 8.54-9.11 in |
| 8 in - 9.05-9.45 in |
| 8 in - 9.46-9.85 in |
| 10 in - 10.00 in |
| 10 in - 10.50-10.75 in |
| 10 in - 11.10-11.60 in |
| 10 in - 11.65-11.88 in |
| 10 in - 11.90-12.20 in |
| 12 in - 12.00 in |
| 12 in - 12.50-12.75 in |
| 12 in - 13.20-13.50 in |
| 12 in - 13.51-13.75 in |
| 12 in - 13.90-14.20 in |
| 12 in - 14.21-14.40 in |
Choose the size and pipe OD; the part number shows in the last option.
Bolts and Sleeve by Size
| Nominal size |
5/8 in bolts |
Sleeve length |
Overall length |
| 2, 2-1/2 in |
2 |
4 in |
8-1/2 in |
| 3 in |
4 |
4 in |
8-1/2 in |
| 4, 6 in |
4 |
5 in |
8-1/2 in |
| 8 in |
6 |
5 in |
8-1/2 in |
| 10 in |
6 |
6 in |
9-1/2 in |
| 12 in |
8 |
6 in |
9-1/2 in |
From the Style 482 datasheet.
Installation Notes
- Thrust restraint is always required when the line is in use: the cap seals on the pipe but does not restrain it, so block or anchor it securely to keep it from moving off the pipe end.
- Clean the pipe end, slide the follower onto the pipe, lubricate the pipe and gasket with a soap-and-water solution that meets the water and pipe supplier's requirements, and slide the gasket on with its beveled edge facing the pipe end.
- Push the cap over the pipe end to a stab depth of at least 3 in, then slide the gasket against the sleeve followed by the follower.
- Install the bolts, hand-tighten the nuts, then tighten gradually, alternating opposite sides so the follower stays parallel, to the torque in the instructions; recheck torque after the line is pressurized.
- Pipe stiffeners are required on polyethylene (PE) pipe.
From Smith-Blair Installation Instructions TI-017 (Rev 08/26/21), in the Data Sheet tab.
Before You OrderAll Smith-Blair products are Made to Order and Non-Returnable.
Items typically shipped in 5 - 10 business days.
Type 304 stainless bolts and nuts (end code -931), 316 stainless hardware, other gaskets, a protected gasket, an insulating boot (4-12 in), custom outlets and a 2 in MNPT test plug are built to order — email sales@watermainsupply.com with the pipe OD and material.
